Autopilot Systems for Ship

Autopilot Type NT921 MKII

Specifically designed for small professional vessel use (typically 11-20m LOA) the NT921 MKII Autopilot provides a powerful combination of steering system control and interface facilities based on an extremely intelligent Control Unit which is clearly marked and simple to operate.

Accordingly, the NT921 MKII offers Navitron steering expertise in a robust and compact package which includes the following special features: –

Dual Channel Heading Inputs : –
NMEA 0183 Direct and Mag Sensor Coil

Built in Radio Navigator Interface for selectable (HI and LO) automatic track steering between waypoints.

Straightforward operation is a key feature of the NT921 MKII thus operator controls are kept to a minimum and are clearly identified by control panel markings which are red backlit for night viewing via a variable intensity illumination control.

A conventionally marked Course Selector permits simple course selection which is automatically corrected to maintain the vessel on a specified track when connected to a GPS or Track Plotter programmed with a track based on predetermined waypoints.

Suitable for console or bracket mounting, the NT921 MKII Control Unit is intended for wheelhouse location and is supplied complete with Heading Sensor Coil and Rudder Reference Unit for installation to solenoid hydraulic systems (11-40Vdc/5A max).

High voltage solenoids (110/220Vac/dc) can also be accommodated via the inclusion of an optional Universal Relay Box type NT920URB.

Alternatively analogue signal control of water jets or analogue steering machines requiring -10v/+10v inputs can be configured via the inclusion of a Navitron Analogue Steering Interface (NT990ASI).

Specification

Specification

Outline Specification

Power Consumption

12V

24V

Standby

3.0W

3.6W

On

3.3W

3.9W

Illumination (max)

5.8 W

7.0W

Solenoid Switch Ratings

Voltage

11-40 Vdc

Current

5A (max)

Switchline Polarity

Installation Selectable

Switch Type

Solid State

Operator controls

Yaw

Rudder

Autopilot Mode Switch

RadioNav Mode Switch

Illumination

Red Backlight

Panel Displays

Rudder Angle

2 Digit LCD + LCD Bar

Heading Indicator

Servo Card In Standby Mode and 3 Digit LCD Display

XTE Indicator

LED

Autopilot Mode

LED Indication of Standby, Auto & Remote

RadioNav Mode

LED Indicator of XTE & Auto Heading Correct

XTE

3 Digit LCD Display

Correction Angle

2 Digit LCD Display

(Via automatic Heading display updates at 15 second intervals)

Panel Alarms

Remote

LED + Audible

Data Input Fail (XTE)

LED + Audible

Max Correction (XTE)

LED + Audible

Mechanical

NT921 MKII Control Unit

Width

259 mm

Height

176 mm

Depth behind bezel

115 mm

Weight

3.9 Kg

Related

INAMEQ is provide all marine product (equipment and sparepart) and news about marine product to help procurement team at shipping industry, ship contractor, port contractor and oil gas company finding competitive price to directly connect with manufacturer and authorized local and international.

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INAMEQ is provide all marine product (equipment and sparepart) and news about marine product to help procurement team at shipping industry, ship contractor, port contractor and oil gas company finding competitive price to directly connect with manufacturer and authorized local and international.